Mips16RegisterInfo.h revision 249423
1//===-- Mips16RegisterInfo.h - Mips16 Register Information ------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file contains the Mips16 implementation of the TargetRegisterInfo class. 11// 12//===----------------------------------------------------------------------===// 13 14#ifndef MIPS16REGISTERINFO_H 15#define MIPS16REGISTERINFO_H 16 17#include "MipsRegisterInfo.h" 18 19namespace llvm { 20class Mips16InstrInfo; 21 22class Mips16RegisterInfo : public MipsRegisterInfo { 23 const Mips16InstrInfo &TII; 24public: 25 Mips16RegisterInfo(const MipsSubtarget &Subtarget, 26 const Mips16InstrInfo &TII); 27 28 bool requiresRegisterScavenging(const MachineFunction &MF) const; 29 30 bool requiresFrameIndexScavenging(const MachineFunction &MF) const; 31 32 bool useFPForScavengingIndex(const MachineFunction &MF) const; 33 34 bool saveScavengerRegister(MachineBasicBlock &MBB, 35 MachineBasicBlock::iterator I, 36 MachineBasicBlock::iterator &UseMI, 37 const TargetRegisterClass *RC, 38 unsigned Reg) const; 39 40 virtual const TargetRegisterClass *intRegClass(unsigned Size) const; 41 42private: 43 virtual void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo, 44 int FrameIndex, uint64_t StackSize, 45 int64_t SPOffset) const; 46}; 47 48} // end namespace llvm 49 50#endif 51